Year 6 · Design and technology · Mechanical systems · Lesson 3
Pulleys and designing a moving product
Pulleys and belts (direction, speed, slipping), choosing between cams, gears, pulleys and levers, and the design process from brief to evaluation.
13-minute video lesson
Teaching, worked examples and 20 practice questions solved step by step.
Watch free for a monthWhat your child will learn
- Explain pulley systems
- Predict pulley direction and speed
- Choose a suitable mechanism
- Follow the design process
The method
- Brief + spec.
- Mechanism.
- Sketch + make.
- Test + evaluate.
Key words: pulley, belt, mechanism, design brief, specification, evaluate.
Worked examples
The first three practice questions from the lesson, with every step.
Question 1
What is a pulley?
- Step 1: Grooved wheel
Answer: a wheel with a groove for a belt or rope
Question 2
What links two pulleys?
- Step 1: b...
Answer: a belt
Question 3
Open belt: driven pulley turns...?
- Step 1: Same
Answer: the same direction